Technical advantages PCD turning and milling tools as compared to tungsten carbide:

• Better surface finish (for brilliant surface finish, natural diamond should be used)
• Interrupted-cut machining without any problems.
• Better ratio of surface finish to cutting forces and metal removal rate.
• Lower cutting forces
• Higher cutting speeds, feed rates and cutting depths for very tough materials.
• Roughing and finishing cycles possible in one operation
• Tool life generally 50 times or more than that of tungsten carbide tools
• Possibility of closer dimensional tolerances

Technical advantages of CBN turning tools, as compared to tungsten carbide, ceramics or grinding :

• Turning of extremely tough materials that generally had to be ground.
• High cutting speeds and metal removal rates assuring economical applications.
• Tool life is substantially increased as compared to sintered carbide and ceramics.
• Outstanding surface finish comparable to ground finish.
• Higher metal removal rate as compared to grinding.
• Possibility of very close tolerance machining due to extremely low tool wear.
• Roughing and finishing cycles possible in one operation.
• Although not replacing the grinding operation in totality, the use of CBN tools has and will eliminate this operation in many cases.